Respiratory system 1

Question 1

What is respiration?

Answer 1

the exchange of gasses between an organism and its environment.

Question 2

What are the two types of respiration?

Answer 2

-External: the exchange of gasses between the alveoli and the extensive capillary
network within the lungs
- internal: the exchange of gasses between the capillary bed and the tissues those
capillary beds supply

Question 3

What are the two basic functional structures the respiratory system divided into?

Answer 3

• The conducting portiong and the respiratory portion

Question 4

What is the conducting portion?

Answer 4

• it involves the nasal cavity which contains the external nasal vestibule and the nasa fossa as well as the septum.
• It includes the pharynx and then the larynx, the treachea and the mainstem bronchi, secondary and tertiary bronchi. and then all the way to bronchiole.

Question 5

What type of epithelial tissue forms the resperatory epthilium of the nasal cavity and larger bronchi?

Answer 5

• consists of pseudostratified columnar epthelium and there are about 5 distinct cell types:
• ciliated columnar cell
• goblet cell
• brush cell
• Basal (short) cells
• Small granule cells